a. What is the maximum stress atthe bottom of the beam immediatelyafter installation?b. What is the maximum stress atthe top of the beam immediatelyafter installation?C. What is the maximum stress atthe bottom of the beam due tosuperimposed service load of 10kN/m?d. What is the maximum stress atthe top of the beam due tosuperimposed service load of 10kN/m?e.If the permissible tensile andcompressive stresses due to serviceloads are 6 MPa and 40 MPa,respectively, what safesuperimposed service load can thebeam carry, in kN/m? The section of a prestressed beamin a flyover is shown. The beam issimply supported over a span of 25m.Given the following data: h = 800mm,Ag = 285,000 mm^2, I = 11,500x10^6mm^4,hGiven the following data:h = 800 mmAg = 285,000 mm²I= 11,500 × 106 mm4Ye=22 kN/m³yy = 180 mmfps = 1800 MPaAps = 2650 mm²Loss of prestress = 10%

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Answered: a. What is the maximum stress at the…

Engineering

Civil Engineering

a. What is the maximum stress at the bottom of the beam immediately after installation?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Methods to Determine Vertical Stress

The load applied to the soil is transferred to the underground. The presence of water at soil pores and solid grains above the soil are the primary components that are responsible for the effective load transfer. Due to the load acting, the internal component of the soil or the underground formations undergoes deformations or a tectonic shift. The amount of deformation depends upon the amount of load acting on the soil surface, which indeed, depends on the weight of everything present above the soil. Due to this, the underground soil element develops internal stresses which try to resist the tectonic changes.

Question

a. What is the maximum stress at
the bottom of the beam immediately
after installation?
b. What is the maximum stress at
the top of the beam immediately
after installation?
C. What is the maximum stress at
the bottom of the beam due to
superimposed service load of 10
kN/m?
d. What is the maximum stress at
the top of the beam due to
superimposed service load of 10
kN/m?
e.
If the permissible tensile and
compressive stresses due to service
loads are 6 MPa and 40 MPa,
respectively, what safe
superimposed service load can the
beam carry, in kN/m?

The section of a prestressed beam
in a flyover is shown. The beam is
simply supported over a span of 25m.
Given the following data: h = 800mm,
Ag = 285,000 mm^2, I = 11,500x10^6
mm^4,
h
Given the following data:
h = 800 mm
Ag = 285,000 mm²
I= 11,500 × 106 mm4
Ye=22 kN/m³
y
y = 180 mm
fps = 1800 MPa
Aps = 2650 mm²
Loss of prestress = 10%

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